Hyeji Shin

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Response surface methodology (RSM) using a Box-Behnken design was used to optimize the extraction conditions for obtaining pancreatic lipase inhibitory and antioxidant principles from Ilex paraguariensis leaves. Three influencing factors: extraction time (min), the liquid-solid ratio, and ethanol concentration (%, v/v) were investigated in the ultrasonic(More)
BACKGROUND Viola yedoensis (VY, Violaceae) is a popular medicinal herb used in traditional eastern medicine for treating lots of diseases, including inflammation and its related symptoms. However, the anti-inflammatory properties of VY have not been demonstrated. In the present study, we investigated the anti-inflammatory effects of VY ethanol extract (VYE)(More)
  • Hyeji Shin, Hayeon Chung, Byoungduck Park, Ki Yong Lee
  • 2016
− A method for simultaneously identifying antioxidative compounds was developed using time-based LC-MS coupled with DPPH assay regardless of the time consuming process. The methanolic extract of Polygonum aviculare (Polygonaceae) showed significant DPPH radical scavenging activity. Time-based DPPH assay for simultaneous identification of active compounds(More)
The phytochemical investigation of the roots of Rhus trichocarpa led to this isolation of five new alkyl phloroglucinol derivatives, characterized as (Z)-15-hydroxy-1-(2,4,6-trihydroxyphenyl)-9-octadecen-1-one (named trichocarpol A, 1), (Z)-15-hydroxy-1-(2,6-dihydroxy-4-methoxyphenyl)-9-octadecen-1-one (named trichocarpol B, 2),(More)
This study was conducted to determine the effects of biophoton treatment during in vitro maturation (IVM) and/or in vitro culture (IVC) on oocyte maturation and embryonic development in pigs. An apparatus capable of generating homogeneous biophoton energy emissions was placed in an incubator. Initially, immature pig oocytes were matured in the(More)
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